Discussions on Some Key Issues of Two-Dimensional Rotational Ultrasonic Combined Electro-Machining of Composite Materials

Author:

Chen Wanwan123,Zhu Yongwei123,Li Jing1

Affiliation:

1. College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China

2. College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225127, China

3. JITRI Institute of Precision Manufacturing, Nanjing 211800, China

Abstract

In order to improve the surface forming quality and machining efficiency of composite materials and reduce tool wear, a two-dimensional rotary ultrasonic combined electro-machining (2DRUEM) technology with low electrical conductivity and low current density was proposed in this study. Additionally, a gap detection unit of the machining system was designed with the integration of grinding force and gap current, and the average errors and maximum errors of the model were 5.61% and 12.08%, respectively, which were better than single detection. Furthermore, the machining parameters were optimally selected via NSGA-II, and the maximum machining surface roughness error was 5.9%, the maximum material removal rate error was 5.5%, and the maximum edge accuracy error was 8.9%, as established through experiments.

Funder

National Natural Science Foundation of China

2022 Jiangsu Province Postgraduate Highlights Study Plan Project

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry

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